( ! ) Fatal error: Uncaught TypeError: HTMLPlainText::__toString(): Return value must be of type string, null returned in /data/http/matinf.uwb.edu.pl/htdocs/lib/html.php on line 21
( ! ) TypeError: HTMLPlainText::__toString(): Return value must be of type string, null returned in /data/http/matinf.uwb.edu.pl/htdocs/lib/html.php on line 21
Call Stack
#	Time	Memory	Function	Location
1	0.0001	484168	{main}( )	.../pracownikii.php:0
2	0.0009	641880	require_once( '/data/http/matinf.uwb.edu.pl/htdocs/templates/wydzial/kadra/pracownikii.php )	.../pracownikii.php:6
3	0.0221	3068960	Page->display( )	.../pracownikii.php:333
4	2.1442	3221176	BaseDocument->display( )	.../layoutii.php:689
5	2.1442	3221176	HTMLDocument->display( )	.../common.php:76
6	2.1442	3221296	HTMLNode->__toString( )	.../html.php:433
7	2.1442	3221296	HTMLNode->html( )	.../html.php:56
8	2.1450	3244424	HTMLNode->html( )	.../html.php:218
9	2.1455	3262760	HTMLNode->html( )	.../html.php:218
10	2.1455	3266704	HTMLNode->html( )	.../html.php:218
11	2.1460	3281952	HTMLNode->html( )	.../html.php:218
12	2.1461	3286408	HTMLNode->html( )	.../html.php:218
13	2.1462	3292256	HTMLNode->html( )	.../html.php:218
14	2.1462	3294664	HTMLNode->html( )	.../html.php:218
15	2.1463	3296992	HTMLNode->html( )	.../html.php:218
16	2.1474	3325552	HTMLNode->html( )	.../html.php:218
17	2.1474	3327640	HTMLPlainText->__toString( )	.../html.php:205